INFECTION OF HEAD LICE WITH RICKETTSIA PROWAZEKI
ARMY BIOLOGICAL LABS FREDERICK MD
Pagination or Media Count:
The cultivation of head lice in the laboratory is possible by their daily 4-stage feeding on human blood. The infection of head lice with Rickettsia prowazeki is possible by the method of Weygl and by the membrane method with accumulation of the causative agent in the intestine. The feces of infected head lice contains a significant amount of Rickettsia prowazeki. The rubbing in of dry feces through the mucous membrane of animals causes experimental typhus in them. In this manner, based on experimental data, head lice, just as well as body lice, may be the source of typhus infection.